1297078741 has 8 divisors (see below), whose sum is σ = 1482856640. Its totient is φ = 1111421088.

The previous prime is 1297078729. The next prime is 1297078751. The reversal of 1297078741 is 1478707921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1297078741 - 2⁵ = 1297078709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1297078691 and 1297078700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297078751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5616 + ... + 51241.

It is an arithmetic number, because the mean of its divisors is an integer number (185357080).

Almost surely, 2^1297078741 is an apocalyptic number.

It is an amenable number.

1297078741 is a deficient number, since it is larger than the sum of its proper divisors (185777899).

1297078741 is an equidigital number, since it uses as much as digits as its factorization.

1297078741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60123.

The product of its (nonzero) digits is 197568, while the sum is 46.

The square root of 1297078741 is about 36014.9793974674. The cubic root of 1297078741 is about 1090.5747721917.

The spelling of 1297078741 in words is "one billion, two hundred ninety-seven million, seventy-eight thousand, seven hundred forty-one".